Your user rights, restrictions imposed by your system admin, or your PC's hardware configuration might limit which settings you can change. For example, if your PC is part of a network at an organization—such as a school or business—your system admin might have turned off or even removed certain settings. In that case, ask your administrator for help.

Which power plans are available?

Balanced.
Offers full performance when you need it and saves power when you don't. This is the best power plan for most people.

Power saver.
Saves power by reducing PC performance and screen brightness. If you're using a laptop, this plan can help you get the most from a single battery charge.

High performance.
Maximizes screen brightness and might increase PC performance. This plan uses a lot more energy, so your laptop battery won't last as long between charges.

3. Temporarily disable sleep windows 8.1 / 8!

If in Windows 8 /8.1 the energy options is very set on ENERGY EFFICIENCY, it may happen that the windows go faster sleep, than it is necessary, even if the programs are working and have not completed their tasks. This problem can be solved with the freeware Don't Sleep, without disable or change the energy saving features.
If you don't have the freeware Don't Sleep, please download it: ... download DontSleep

3. List Other Commands in powerconfig!

POWERCFG /COMMAND [ARGUMENTS]

Description:

Enables users to control power settings on a local system.

For detailed command and option information, run "POWERCFG /? "

Command List:

/LIST, /L

Lists all power schemes.

/QUERY, /Q

Displays the contents of a power scheme.

/CHANGE, /X

Modifies a setting value in the current power scheme.

/CHANGENAME

Modifies the name and description of a power scheme.

/DUPLICATESCHEME

Duplicates a power scheme.

/DELETE, /D

Deletes a power scheme.

/DELETESETTING

Deletes a power setting.

/SETACTIVE, /S

Makes a power scheme active on the system.

/GETACTIVESCHEME

Retrieves the currently active power scheme.

/SETACVALUEINDEX

Sets the value associated with a power setting while the system is powered by AC power.

/SETDCVALUEINDEX

Sets the value associated with a power setting while the system is powered by DC power.

/IMPORT

Imports all power settings from a file.

/EXPORT

Exports a power scheme to a file.

/ALIASES

Displays all aliases and their corresponding GUIDs.

/GETSECURITYDESCRIPTOR

Gets a security descriptor associated with a specified power setting, power scheme, or action.

/SETSECURITYDESCRIPTOR

Sets a security descriptor associated with a power setting, power scheme, or action.

/HIBERNATE, /H

Enables and disables the hibernate feature.

/AVAILABLESLEEPSTATES, /A

Reports the sleep states available on the system.

/DEVICEQUERY

Returns a list of devices that meet specified criteria.

/DEVICEENABLEWAKE

Enables a device to wake the system from a sleep state.

/DEVICEDISABLEWAKE

Disables a device from waking the system from a sleep state.

/LASTWAKE

Reports information about what woke the system from the last sleep transition.

/WAKETIMERS

Enumerates active wake timers.

/REQUESTS

Enumerates application and driver Power Requests.

/REQUESTSOVERRIDE

Sets a Power Request override for a particular Process, Service, or Driver.

/ENERGY

Analyzes the system for common energy-efficiency and battery life problems.